#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2002-2023, OpenNebula Project, OpenNebula Systems                #
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# Licensed under the Apache License, Version 2.0 (the "License"); you may    #
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# http://www.apache.org/licenses/LICENSE-2.0                                 #
#                                                                            #
# Unless required by applicable law or agreed to in writing, software        #
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#--------------------------------------------------------------------------- #

# POSTMIGRATE SOURCE DST remote_system_dir vmid dsid template
#  - SOURCE is the host where the VM is running
#  - DST is the host where the VM is to be migrated
#  - remote_system_dir is the path for the VM home in the system datastore
#  - vmid is the id of the VM
#  - dsid is the target datastore
#  - template is the template of the VM in XML and base64 encoded

SRC_HOST=$1
DST_HOST=$2

DST_PATH=$3

VMID=$4
DSID=$5

TEMPLATE_64=$(cat)

if [ -z "${ONE_LOCATION}" ]; then
    TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
else
    TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
fi

. $TMCOMMON

CMD=$(cat <<EOF
    set -ex -o pipefail
    $SYNC
    $SUDO $LVSCAN

    for disk in \$(ls ${DST_PATH}/disk.*); do
        if [ -L "\$disk" ]; then
            DEVICE=\$(readlink "\$disk")

            if echo "\$DEVICE" | grep -q '^/dev/vg-one'; then
                $SUDO $LVCHANGE -an \$DEVICE
            fi
        fi
    done
EOF
)

ssh_exec_and_log $SRC_HOST "$CMD" \
    "Error running fs_lvm postmigrate"

ssh_exec_and_log "${DST_HOST}" \
    "hostname -f >\"${DST_PATH}/.host\" || :"
    "Error modifying .host after fs_lvm postmigrate"

migrate_other "$@"
